Incandescent gas-burner.



PATENTED DEC. 13, 1904.

J. U. P. JURGENS. IN-GANDESOENT GAS BURNER.

APPLICATION FILED MAY 31, 1904.

NO MODEL.

@am? M UNITED STATES Patented December 13, 19042..

PATENT EETcE.

JULIUS CHARLES FRIEDRICH JURGENS, OF HAMBURG, GERMANY, AS- SIGNOR TO RUDOLPH GUSTAV WVITT, OF HAMBURG, (JrERMANY.

INCANDESCENT GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 777,212, dated D m r 13, 1904.

Application filed May 31, 1904.

T0 at w/wm, it may concern:

Be it known that I, J ULms CHARLES FRIED RICH J URGENS, a subject of the German Emperor, residing at Hamburg, Germany, have invented certain new and useful Improvements in Incandescent Gas-Burners, of which the following is a specification.

This invention relates to an improved incandescent gas-burner the novel feature of which substantially consists in the fact that the rays of light emitted from theinterior of the incandescent body pass practically without hindrance from the burner, whereas with the burners hitherto known these rays are in part intercepted by the burner-head and in part reflected upward.

In the annexed drawings, Figures 1 and 2 are respectively a vertical section and a plan view illustrating one form of the improved burner, and Fig. 3 is a detail view illustrating a modification.

The burner is adaptedto be directly placed on the mixing-tube of an ordinary gas-pipe and comprises a tube a, which is distinguished from the corresponding part of other incandescent burners by the fact that its upper end is not enlarged or only very slightly enlarged.

In the form of construction shown in Figs.

1 and 2 the upper end or the tube a is closed by the disk 7), which may be provided with the socket for the support of the incandescent body. At its upper end the tube a is provided about its circumference with, preferably, slot-shaped orifices 0 for the outflow of the mixture of gas and air. These orifices may be covered with Wire-netting or the like, if desired. By this means a flame is obtained the diameter of which is considerably larger than that of the burner head or nozzle, and the diameter of the incandescent body is correspondingly larger than that of the burnerhead. The latter does not, therefore, afi'ord to the incandescent body such support as would prevent the swinging of the said body, and for this reason three, four, or more suitablycurved holders (Z are arranged at a suitable distance from the burnerhead and are adapted to hold the incandescent body in a position in which it is concentric with the tube (0. These Serial No. 210,465. (No model.)

holders can also form a continuous ring, and it is immaterial whether they abut against the outer surface or the inner surface of the incandescent body. Instead of the usual gallery for the support of the chimney three, four, or more curved holders f are provided, and these can also form a continuous ring, if desired. The holders f and (Z are connected, by means of thin supports 9, to radial arms it, supported by the tube a.

In addition to supporting the chimney the arms it can serve as supports for a hood or cap adapted to be placed over the burner-head.

The space between the burner-head and the lower edge of the incandescent body allows the light-rays omitted from the interior of the latter to pass downward practically without hindrance; so that rays otherwise intercepted or reflected upward are utilized for illuminating objects below the burner, and the eiiiciency of the latter is thus considerably increased.

In the modification illustrated in Fig. 3 the upper orifice of the tube a is covered by a perforated disk of network or the like 11, through which the mixture oi gas and air passes. In this case a flame of the desired shape is produced by the deflecting action of a disk is, mounted above said disk '2 I declare that what I claim is 1. An incandescent burner comprising in combination a burner-head having means for laterally spreading the flame, an incandescent body supported by said burner-head and of such a diameter as to leave a considerable free space between its wall and the burner-head for downward passage of the light-rays emitted by the interior of said incandescent body, and means for holding said incandescent body in a position concentric to the burner-head substantially as described.

2. An incandescent burner comprising in combination a lnirner-head closed above and having lateral orifices for passage of the gas and air, an incandescent body supported by said burner-head and of such a diameter as to leave a considerable free space between its wall and the burner-head for downward passage of the light-rays emitted by the interior of said incandescent body, and means for holding said incandescent body in a position concentric to the burner-head substantially as described.

3. An incandescent burner comprising in combination a burner-head closed above and having lateral orifices for passage of the gas and air, an incandescent body supported by said burner-head and of such a diameter as to leave a considerable free space between its Wall and the burner-head for downward passage of the light-rays emitted by the interior of said incandescent body, and a plurality of curved holders adapted to hold said incandescent body in a position concentric to the burner-head substantially as described.

In witness whereof I have signed this specification in the presence of two witnesses.

JULIUS CHARLES FRIEDRICH JURGENS. Witnesses:

RUDOLPH GUSTAV Wrrr,

FRITZ RUDOLF WILLIBALD SCHROETER. 

